摘要
对浙江省金华地区42个晚稻田样点的18种主要杂草的优势度等级进行了七级目测．将所得数据转换成重要值；以此计测了它们的生态位宽度和生态位重叠值；以生态位重叠值作为指标．应用图论聚类中的最小生成树法，分析了该地区晚稻田主要杂草的生态学相似性关系。
In the late-rice fields in Jinghua of Zhejiang province, 42 sites on different ecobeical condi tions were surveyed in detail by seven grades to obtain the weed important value. The speies niche breadth and niche overlaps were then woked out on the basis of the data above. The eco logical similarity of weeds was also analysed by the minimal spanning tree method of fuzzy graphy theory based on their niche overlaps.
出处
《浙江师大学报（自然科学版）》
1998年第1期52-58,共7页
Journal of Zhejiang Normal University(Natoral Sciences)
